infinitive

An infinitive form of a verb without the word 'to', often used after modal verbs.

An infinitive with an adverb or other word placed between 'to' and the verb.

Formed with 'have' + past participle, referring to an action that occurred in the past.

Formed with 'be' + past participle, where the subject receives the action.

Used in grammatical descriptions to mean a verb is followed by an infinitive.

To place an adverb or other word between 'to' and the base verb.

To construct the infinitive form of a verb.